Until April 1, 2012, the ninety-first district consists of the county of Chippewa, is a district of the first class, and has 1 judge. Beginning April 1, 2012, the ninety-first district consists of the county of Chippewa and is a district of the first class. Under section 810a, a probate judge for the county of Chippewa shall serve as judge of the ninety-first district.